How to sign a message?! - page 38. | Bitcointalksearch.org

MarkMJ

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one for one and 1 2 3

Quote from: shorena on July 07, 2015, 03:11:49 PM

Quote from: --Encrypted-- on July 07, 2015, 01:26:03 PM

Quote from: tarsua on July 07, 2015, 09:24:56 AM

Why is this not stickied? have you asked the admins to make it a sticky OP?

apparently most topic that gets stickied is about the forum (rules, guide, etc.). tho this thread should really get stickied since a lot of newbies asks about signed message almost everywhere.

No, I have not asked the admins. I dont know, it feels strange to ask for my own thread to get stickied. Maybe create a thread about it in meta and see how others react to this.

LoL why do you say that?
This is something that all user's need to know
Need to be stickied.

mprep

global moderator

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Merit: 2612

In a world of peaches, don't ask for apple sauce

Added to the Unofficial list of (official) Bitcointalk.org rules, guidelines, FAQ:

Quote

Q: My account was hacked! What do I do?
A: See this thread: https://bitcointalksearch.org/topic/recovering-hacked-accounts-or-accounts-with-lost-passwords-497545. If you don't know how to sign a message, see this thread made by shorena: https://bitcointalksearch.org/topic/how-to-sign-a-message-990345

Also, remember when PMing the signed message, send it in [code ][/code ] brackets (just without the space at the end). For example,

Code:

-----BEGIN BITCOIN SIGNED MESSAGE-----
My account  has been hacked/lost. Please reset the email to . The current date is .
-----BEGIN SIGNATURE-----


-----END BITCOIN SIGNED MESSAGE-----

Here is the unedited post where I posted that address: ...
OR
I sent that address to someone in a PM with PM ID#...

If you don't know how to sign a message and the tutorial mentioned before didn't mention your client, google for some tutorials with terms like: "signing messages with ". For example, "signing messages with bitcoin-qt".

Keep up the great work.

shorena

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No I dont escrow anymore.

Quote from: --Encrypted-- on July 07, 2015, 01:26:03 PM

Quote from: tarsua on July 07, 2015, 09:24:56 AM

Why is this not stickied? have you asked the admins to make it a sticky OP?

apparently most topic that gets stickied is about the forum (rules, guide, etc.). tho this thread should really get stickied since a lot of newbies asks about signed message almost everywhere.

No, I have not asked the admins. I dont know, it feels strange to ask for my own thread to get stickied. Maybe create a thread about it in meta and see how others react to this.

--Encrypted--

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Merit: 1007

hee-ho.

Quote from: tarsua on July 07, 2015, 09:24:56 AM

Why is this not stickied? have you asked the admins to make it a sticky OP?

apparently most topic that gets stickied is about the forum (rules, guide, etc.). tho this thread should really get stickied since a lot of newbies asks about signed message almost everywhere.

tarsua

sr. member

Activity: 266

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Why is this not stickied? have you asked the admins to make it a sticky OP?

MarkMJ

hero member

Activity: 714

Merit: 500

one for one and 1 2 3

Nice tutorial and very helpful for newbies and also for me
I never need this,now I need it
Thank you for this tutorial.

alberthendriks

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thanks

tarsua

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Merit: 250

Quote from: alberthendriks on July 06, 2015, 10:23:26 PM

To the dude who just read the above message and then tried to log in to my wallet: I have 2FA turned on and your ip is logged at two sites.

Firstly, verified, secondly, someone cant use that to try to log into your wallet, they probably have access to your identifier

alberthendriks

member

Activity: 86

Merit: 10

To the dude who just read the above message and then tried to log in to my wallet: I have 2FA turned on and your ip is logged at two sites.

alberthendriks

member

Activity: 86

Merit: 10

Can someone test my signed message? I don't really understand how it works, but this came out of the tutorial.

Code:

-----BEGIN BITCOIN SIGNED MESSAGE-----
This is alberthendriks from bitcointalk.org on 2015-07-07. I sign this message so I can later prove that I still have control over my account.
-----BEGIN SIGNATURE-----
13EDLzhBbe1aEmFfDRGsekw7iVs2e356o6
G7boxuY/0QhUZBIjwI/ESCgh26Kl/3N985H5lrJuRyipYt9Tm50s3h/gG10BbCFV7RxgZwXGS6ysi+Q60Kpgjqk=
-----END BITCOIN SIGNED MESSAGE-----

Muhammed Zakir

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I prefer Zakir over Muhammed when mentioning me!

Bump.

shorena

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No I dont escrow anymore.

Quote from: RealBitcoin on June 28, 2015, 04:39:01 AM

Quote from: Sethtabiah on June 17, 2015, 05:00:25 AM

Wow, this is a great tutorial shorena! I think mods should sticky this, because every new user have to learn this basic thing before it's too late. I see a lot of users got hacked or lost password and they end up losing their account forever.

Blockchain.info -> Receive address -> Select address -> Actions -> Sign message

If you are a newbie, dont consider using anything else than blockchain.info.

Its a tad offtopic, but Ill bite. I would not recommend using blockchain.info at all, no matter if you are a newbie or not. Their service is constantly unreliable and/or offline. Blockchain.info offers nothing over a local wallet except that its accessible from everywhere, which is probably not a feature most people are looking for when its about their money. Even if its important than you can access your funds (or at least part of them) from everywhere, use an app for your smartphone.

Besides that, my impression is that Sethtabiah was talking about bitcointalk.org accounts, where a signed message can restore access to the account.

RealBitcoin

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JAYCE DESIGNS - http://bit.ly/1tmgIwK

Quote from: Sethtabiah on June 17, 2015, 05:00:25 AM

Wow, this is a great tutorial shorena! I think mods should sticky this, because every new user have to learn this basic thing before it's too late. I see a lot of users got hacked or lost password and they end up losing their account forever.

Blockchain.info -> Receive address -> Select address -> Actions -> Sign message

If you are a newbie, dont consider using anything else than blockchain.info.

shorena

copper member

Activity: 1498

Merit: 1528

No I dont escrow anymore.

Quote from: bitcoinmar on June 27, 2015, 12:34:26 PM

Very good work done by Shorena its helping many newbies to sign message and I have one question why this thread is not sticky can some one do this ?

Admins decide whether a thread gets stickied or not. Im not sure what the criteria for that are, but most stickies are about the forum and its rules.

Quote from: camelson on June 27, 2015, 01:29:02 PM

Thanks shorena for these helpful topic, But can you please tell me How i can sign a message using BIT-X and BTC-e. Because im using their address. And i dont know I can sign a message

As they are not traditional wallets, but rather exchanges (+ extra in bit-x's case) I doubt you can sign a message with your deposit address. If they allow you to export the private keys you can use a local wallet to sign a message, but I doubt they do in the first place. I have no account for either service though.

camelson

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Thanks shorena for these helpful topic, But can you please tell me How i can sign a message using BIT-X and BTC-e. Because im using their address. And i dont know I can sign a message

bitcoinmar

hero member

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Very good work done by Shorena its helping many newbies to sign message and I have one question why this thread is not sticky can some one do this ?

misterycoins

sr. member

Activity: 249

Merit: 250

Very helpful tutorial ,awesomely simple explanation. thanks a lot

shorena

copper member

Activity: 1498

Merit: 1528

No I dont escrow anymore.

Quote from: Amitabh S on June 22, 2015, 04:32:06 PM

Can someone be fooled into creating a signature for an address that releases funds from that address?
(Or do tx signatures and "ordinary" signatures follow different encoding?)

Im not 100% sure whether they are differently encoded, but my guess is that they are not. The message is just greatly different. Let me give you an example to make this clear. The following is my first raw transaction I created. I had to double spend it later because I did not pay a fee, so you cant find it on the blockchain. It was an attempt to fuse several spam TX into a single input. The TX is signed in its raw form and if you change a single bit the signature is invalid. Thus you cant have part of the message be a hidden transaction. You would need to convince someone to sign a very specific hex string like the "raw" below that makes little sense to a human. Additionally a TX might (as is the case here) need more than one signature.

formatted:

Code:

"[
{\"txid\":\"0c6c7de8c27a6bfe5c2e5e9a364bdbd2028194e25ba645bab91eae5668db10fa\",\"vout\":23},
{\"txid\":\"28d39206e2592bf02777831d839baa540137287936a3ee3f2b935bcccf7d2ee0\",\"vout\":4},
{\"txid\":\"4549b62fa61b0612ef6f06413b66d31cb454bfdccb2a12a2ca06e8e0a36c07b5\",\"vout\":1},
{\"txid\":\"cdd2d34071d548455d0b55130472006de2c048452ab96880e63feec619909797\",\"vout\":0}
]"
"{\"1MpNbGQrignRG9QKGbEQpz5uCg8KBJrQ9a\":0.0022}"

raw:

Code:

0100000004fa10db6856ae1eb9ba45a65be2948102d2db4b369a5e2e5cfe6b7ac2e87d6c0c1700000000ffffffffe02e7dcfcc5b932b3feea3367928370154aa9b831d837727f02b59e20692d3280400000000ffffffffb5076ca3e0e806caa2122acbdcbf54b41cd3663b41066fef12061ba62fb649450100000000ffffffff97979019c6ee3fe68068b92a4548c0e26d00720413550b5d4548d57140d3d2cd0000000000ffffffff01605b0300000000001976a914e45816c635fd7bfb567aa83c3980066c8de9046988ac00000000

and signed:

Code:

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

Velkro

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